Improvement in harrows



W. TAYLOR.

nmmow.

Patented April 25, 1876.

NJETERS, PHOTU-LITHOGRAPHER. WASHINGTON. D C.

UNITED STATES PATENT @FFIGE.

WILLIAM TAYLOR, OF ROCHESTER, NEW YORK.

IMPROVEMENT IN HARROWS.

Specification forming part of Letters Patent No. 176,564, dated April25, 1876; application filed April 19, 1875.

To all whom it may concern Be it known that I, WILLIAM TAYLOR, of thecity of Rochester, in the county of Monroe and State of New York, haveinvented a certain new and useful Improvement in Harrows; and I dohereby declare that the following is a full, clear, and exactdescription of the construction and operation of the same, referancebeing had to the accompanying drawings, in which- Figure l is a plan ofthe harrow. Fig. 2 is a perspective view of one of the teeth and itsconnecting parts. Fig. 3 is a section in line as aof Fig. 2.

My invention consists of bearings. constructed with right-angled lugsfor bolting the longitudinal bars to the cross-bars of the frame, andwith offsets and inclined sockets for receiving the flat swinging teeth,as hereinafter more fully described.

A A are the sections of the harrow,'0f which two or more may be used,suitably connected together. Each section is composed of longitudinalbars B B, set up edgewise on flat cross-bars G 0. They are connected toangular bars J J D D are the teeth, which are made of flat strips ofsteel, tapering to a point at the bottom and sharp-edged at both sides.The lower cutting portions of these teeth are twisted or set at anangle, so as to follow in line with the draft, which is applied on oneside of the center.

E E are the bearings, which are made preferably of malleable or castiron. The body a. is made plain or flat, to fit the fiat surface of thebars B B, to which it is secured by bolts 12 b. It is also constructedwith an offset, 0, within which is formed a socket, d, to receivetheflat tooth D. The socket is of the angular or inclined form shown inFig. 3, and is wider than the tooth, by which means the latter can turnon its axis and incline in one direction or standupright in the otherdirec tion. By this means the teeth are adapted to cut vertical orinclined, according as the draft is applied at one end or the other ofthe harrow. This is shown in the black and dotted lines, Fig. 3. Thepivots f f of the tooth are solid points, cast on the socket, which litin any of the adjusting-holes g g, by which means the teeth may beadjusted higher or lower.

The bearings E are also constructed with flanges h h, which rest in theangle between the longitudinal bars B and the cross-bars C, and aresecured to said parts by screw-bolts i i, as clearly shown in.Fig. 2.

The bearings E E, constructed as above described, serve the doublepurpose of attaching the longitudinal bars to the crossbars, thus savingthe cost and trouble of extra bolting and riveting, and of forming thesockets to the flat swinging teeth. By this means the use of doublebars, with the teeth resting between them, or of double socket-pieces,is avoided, materially reducing the cost and producing a strong andsubstantial connection; also, making the harrow lighter than wouldotherwise be the case. The bars B B may be either of iron or wood.

, mm are eyes formed on the ends of the braces O O. In these restS-shaped connections at n, which form the joints between the sections ofthe harrow. The ends of the connections are made sufficiently open toallow them to be readily hooked or unhooked. They form flexible hingeswhich allow perfect play to the sections of the barrow, both forward andbackward and vertically, being more effective in these respects thanordinary links and chains which have heretofore been in use. They alsoserve to keep the sections of the harrow apart. They allow the sectionsto rise and fall independently,

thereby working perfectly over all irregularities of the ground. Bysetting the eyes m m close up to the sides of the harrow, as shown,greater strength of the joint is secured, as the leverage is avoidedwhich would occur if the-eyes were carried in near the center.

I do not claim a swinging tooth; neither do I claim a clamp with aninclined socket; neither do I claim an angle-iron for uniting the barsof the harrow; but

I claim- The bearings E E, constructed with the In witness whereof Ihave hereunto signed right-angled lugs h h for bolting the longimy namein the presence of two subscribing tudinal bars to the cross-bars of theharrow witnesses. without rivets, and with oflsets c c and inclinedsockets (I (I for receiving the flat Witnesses: swlnging teeth D D, asand for the purpose specified.

WILLIAM TAYLOR.

R. F. Oscoon, EDWIN B. SCOTT.

